blockstream-electrs: init at 0.4.1-unstable-2024-11-25 (#318195)

pkgs/by-name/bl/blockstream-electrs/package.nix

@@ -0,0 +1,86 @@
+{
+  bitcoind,
+  electrum,
+  fetchFromGitHub,
+  lib,
+  rocksdb_8_3,
+  rustPlatform,
+  stdenv,
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "blockstream-electrs";
+  version = "0.4.1-unstable-2024-11-25";
+
+  src = fetchFromGitHub {
+    owner = "Blockstream";
+    repo = "electrs";
+    rev = "680eacaa8360d5f46eaae9611a3097ba183795c6";
+    hash = "sha256-oDM4arH3aplgcS49t/hy5Rqt36glrVufd3F4tw3j1zo=";
+  };
+
+  useFetchCargoVendor = true;
+  cargoHash = "sha256-X2C69ui3XiYP1cg9FgfBbJlLLMq1SCw+oAL20B1Fs30=";
+
+  nativeBuildInputs = [
+    # Needed for librocksdb-sys
+    rustPlatform.bindgenHook
+  ];
+
+  env = {
+    # Dynamically link rocksdb
+    ROCKSDB_INCLUDE_DIR = "${rocksdb_8_3}/include";
+    ROCKSDB_LIB_DIR = "${rocksdb_8_3}/lib";
+
+    # External binaries for integration tests are provided via nixpkgs. Skip
+    # trying to download them.
+    BITCOIND_SKIP_DOWNLOAD = true;
+    ELECTRUMD_SKIP_DOWNLOAD = true;
+    ELEMENTSD_SKIP_DOWNLOAD = true;
+  };
+
+  # Only build the service
+  cargoBuildFlags = [
+    "--package=electrs"
+    "--bin=electrs"
+  ];
+
+  # Some upstream dev-dependencies (electrumd, elementsd) currently fail to
+  # build on non-x86_64-linux platforms, even if downloading is skipped.
+  # TODO(phlip9): submit a PR to fix this
+  doCheck = stdenv.hostPlatform.system == "x86_64-linux";
+
+  # Build tests in debug mode to reduce build time
+  checkType = "debug";
+
+  # Integration tests require us to pass in some external deps via env.
+  preCheck = lib.optionalString doCheck ''
+    export BITCOIND_EXE=${bitcoind}/bin/bitcoind
+    export ELECTRUMD_EXE=${electrum}/bin/electrum
+  '';
+
+  # Make sure the final binary actually runs
+  doInstallCheck = true;
+  installCheckPhase = ''
+    $out/bin/electrs --version
+  '';
+
+  meta = {
+    description = "Efficient re-implementation of Electrum Server in Rust";
+    longDescription = ''
+      A blockchain index engine and HTTP API written in Rust based on
+      [romanz/electrs](https://github.com/romanz/electrs).
+
+      Used as the backend for the [Esplora block explorer](https://github.com/Blockstream/esplora)
+      powering <https://blockstream.info>.
+
+      API documentation [is available here](https://github.com/blockstream/esplora/blob/master/API.md).
+
+      Documentation for the database schema and indexing process [is available here](https://github.com/Blockstream/electrs/blob/new-index/doc/schema.md).
+    '';
+    homepage = "https://github.com/Blockstream/electrs";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ phlip9 ];
+    mainProgram = "electrs";
+  };
+}